Thread: removing cats completely.
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Old 03-30-2010, 01:35 PM   #8 (permalink)
Red370
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Originally Posted by tjlazer View Post
From the dyno results I have seen, it's not 40HP with HFCs. It's 8-10 (with testpipes), and around 4-5 for HFC's. The Cat back can net upto 20HP, and another 17 or so from a CAI.

So with ricer math (which seems to work on the Z34) you should see around 25HP from just a catback and HFC's, and around 30 with catback and no cats at all.
8-10 and 4-5 huh? how about 15whp? Thank you Red370, you're so f'in cool!

Berk HFC dyno results
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